title: Effect of homocysteine-lowering vitamin treatment on electrocardiography stress tests in a randomized, placebo-controlled trial: comparison between ST-segment changes and Athen QRS-score.
mesh_terms: D003324:Coronary Artery Disease / Q000517:prevention & control*; D004311:Double-Blind Method; D004562:Electrocardiography / Q000187:drug effects; D005080:Exercise Test; D005492:Folic Acid / Q000627:therapeutic use*; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D020138:Hyperhomocysteinemia / Q000188:drug therapy*; D008875:Middle Aged; D025101:Vitamin B 6 / Q000627:therapeutic use*
chemical_list: D006710:Homocysteine; D025101:Vitamin B 6; D005492:Folic Acid